Punnet Square Practice Question Preview (ID: 49023)


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What would be the genotype of a person who has a sex-linked disease would be
a) X*X
b) XY
c) XX
d) X*Y

Whiskers in seals is dominant. What is the probability that 2 homozygous whiskered seals would have a baby without whiskers?
a) 0%
b) 100%
c) 25%
d) 10%

Round is dominant to square. What is the probability of the shape being round if a homozygous round father and a homozygous square mother have babies?
a) 100%
b) 75%
c) 25%
d) 0%

Purple flowers are dominant over white. What % will be white if two homozygous dominant parents are bred?
a) 100%
b) 50%
c) 0%
d) 25%

The genotype of a carrier of a sex-linked disease would be:
a) X*X
b) XY
c) X^X*
d) xx

Having more than 5 fingers (Polydactyly) is a dominant trait. What is the probability that two people, each of which have 5 fingers per limb,will have a 6-fingered child?
a) 50%
b) 0%
c) 75%
d) 100%

Cuteness is a dominant trait in bunnies. Two bunnies heterozygous for cuteness have numerous offspring. What percentage of the offspring would be predicted to not be cute?
a) 100%
b) 25%
c) 50%
d) 75%

A normal woman with a colorblind father marries a normal man. What is the probability that her child (who will be a male), will be colorblind?
a) 50%
b) 75%
c) 100%
d) 0%

Hemophilia is a sex-linked trait. What is the probability of a diseased female and a normal male producing a healthy child?
a) 25%
b) 100%
c) 50%
d) 0%

A heterozygous individual is mated with a homozygous recessive individual. What percentage of their children will be heterozygous?
a) 10%
b) 100%
c) 25%
d) 50%

The probability of a human couple having a male child is:
a) 100%
b) 50%
c) 25%
d) 75%

Fluffy fur is a dominant trait in guinea pigs. Two fluffy guinea pigs have a non-fluffy offspring. What must be the genotypes of the parents?
a) FF and FF
b) Ff and Ff
c) ff and ff
d) Fg and FF

If two heterozygous individuals are mated, what percentage of their offspring will have the dominant phenotype?
a) 100%
b) 10%
c) 50%
d) 75%

If brown is dominant over pink, what is the phenotypes of the offspring of 2 heterozygous brown bunnies?
a) 25% brown 75% pink
b) 100% brown
c) 75% brown, 25% pink
d) 100% pink

If brown is dominant to pink, what is the phenotype of the offspring of 1 homozygous brown bunny and 1 pink bunny?
a) 100% brown bunnies
b) 75% brown 25% pink
c) 0% brown
d) 50% of each

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